Ключевые слова: attention, background, barrier, bio hazard, biohazard, biological, biological hazard, caution, closed, concept, conditions, contagion, corona virus, coronavirus, covid19, danger, dangerous, design, epidemic, flu, health, icon, illustration, infection, lock down, lockdown, locked, medical, outbreak, pandemic, pathogen, place, poster, prevention, protection, quarantine, quarantined, sign, stop, symbol, tape, toxic, viral, virus, wall, warning, zone,